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Guide bar arrangement

A guide rail device and guide rail technology, which is applied in the direction of sawing equipment, chain saws, wood processing appliances, etc., can solve the problems of being easily blocked by sawdust or the like, hindering oil delivery to the saw chain, etc., and achieve the goal of improving lubrication and reducing demand Effect

Active Publication Date: 2009-06-24
ANDREAS STIHL AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of oil hole is prone to clogging with wood chips or similar during operation, which hinders the delivery of oil to the saw chain

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] exist figure 1 An exemplary embodiment of a hand-operated hand-held power saw 1 is shown in FIG. 1 , but the invention can also be used in other power saws, such as high branch saws (Hochentaster), or harvesters, so-called harvesters.

[0024] The power saw 1 has a housing 2 . A rear handle 3 and an operating tube 4 are fixed on the housing. On the side of the housing 2 opposite the rear handle 3 a guide rail 6 protrudes forward. A saw chain 7 is arranged circumferentially on the guide rail. A drive motor 5 is arranged in the housing 2 . This motor drives the saw chain 7 around the guide rail 6 .

[0025] exist figure 2 A cross-sectional view of the region of the guide rail 6 fastened to the power saw 1 is shown in . In order to fix on the power saw 1 the guide rail 6 has a longitudinal groove 8, and some transverse holes 16, in the figure 2 Only one of the holes is shown. A tensioning device (not shown) for the saw chain 7 can engage in this transverse hole 1...

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PUM

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Abstract

The present invention relates to a guide bar arrangement. For a guide bar arrangement comprising a guide bar (6) and a saw chain (7) guided in circulation in a guide groove (9) it is provided that the guide bar (6) has an opening for supply of oil which opening extends from an exterior side (20) of the guide bar (6) extending in a longitudinal direction of the guide bar into the guide groove (9) and opens into a first sidewall (18) in the guide groove (9). In order to prevent clogging of the opening, it is provided that in the opening an insert (17, 27, 37, 47) is secured that reduces the free flow cross-sectional area of the opening.

Description

technical field [0001] The invention relates to a guide rail device. Background technique [0002] US 4,211,007 discloses a guide rail which has two oil holes opposite each other. These oil holes are provided in the side walls of the guide grooves. Oil holes of this type tend to become clogged with wood chips or the like during operation, which hinders the delivery of oil to the saw chain. Contents of the invention [0003] The object of the present invention is to provide a guide rail arrangement which ensures good lubrication of the saw chain. [0004] This task is achieved by a rail arrangement having a rail and a saw chain driven around. The guide rail has a guide groove which extends on the outer periphery of the guide rail and in which the saw chain is guided, the guide groove is delimited by a groove bottom and two side walls which are opposite to each other, and the guide rail has a A mouth, which extends from the outer side of the guide rail extending in the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27B17/02B27B17/12
CPCB27B17/12
Inventor W·加尔斯特
Owner ANDREAS STIHL AG & CO KG
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